#include <iostream>

int main(void){
	using namespace std;

	int quizscores[10] = {20, 20, 20, 20, 20, 19, 20 ,18, 20, 20};

	cout << "Doing it right:\n";
	int i;
	for (i = 0; quizscores[i] == 20; i ++){
		cout << "quiz " << i << " is a 20\n";
	}

	cout << "Doing it dangerouslu wrong:\n";
	for (i = 0; quizscores[i]= 20; i++)
		cout << "quiz " << i << " is a 20\n";

	return 0;
}